NATURE OF BUSINESS (Details ) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) center loan	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of centers | center		398
Number of reportable segments | loan		2
BRMG and NY Groups revenues		$ 221,100	$ 205,600	$ 189,100
BRMG and NY Groups operating expenses		221,100	205,600	189,100
Management services provided to BRMG and NY Groups		928,100	849,400	$ 786,500
BRMG and NY Groups accounts receivable		3,286,690	2,690,473
BRMG and NY Groups accounts payable		2,153,280	1,877,114
Variable Interest Entity, Primary Beneficiary
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
BRMG and NY Groups accounts receivable		103,000	94,100
BRMG and NY Groups accounts payable		$ 22,700	$ 16,700
Common Stock | Public Offering
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of shares issued in transaction (in shares) | shares	5,232,500
Stock price (in dollars per share) | $ / shares	$ 44.00
Gross proceeds	$ 230,200
Public offering expenses	$ 11,800
Common Stock | Public Offering | Sold Pursuant to Exercise
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of shares issued in transaction (in shares) | shares	682,500